Results 101 to 110 of about 2,608 (229)

OOK/DS-CDMA bit error probability over Rayleigh fading channels

, 2013
A major constraint in deployments of resource-limited networks is the energy consumption related to the battery lifetime of the network nodes. To this end, power efficient digital modulation techniques such as On-Off keying (OOK) are highly attractive ...
Hakan Hjalmarsson, Dimitrios Katselis, Hjalmarsson, Håkan,, Katselis, Dimitrios,, Carlo Fischione, Fischione, Carlo,   +5 more
core   +1 more source

Robustness of the OOK Modulation Formats at 40Gbit/s In the Practical System Infrastructure

, 2005
We experimentally investigate the robustness of OOK modulation formats at 40 Gbit/s versus transmission impairments and optical filtering.
A. Tonello, J. D. Anja Castanon, J. D. Ania Castanon, T. Vargas, E. Pincemin, J. Y. Guilloux, A. Bezard, WABNITZ, Stefan, S. K. Turitsyn   +8 more
core  

Low-power 10 Gbit/s RZ-OOK all-optical modulation using a novel photonic-crystal Fano switch

, 2014
We demonstrate a novel photonic-crystal nanocavity switch based on a Fano resonance. Compared to conventional structures with Lorentzian lineshape, the Fano resonance reduces the switching energy and suppresses patterning effects, allowing experimental ...
Mikkel Heuck, Yu, Yi, Heuck, Mikkel, Yvind, Kresten, Weiqi Xue, Jesper Mork, Mørk, Jesper, Peucheret, Christophe, Hao Hu, Xue, Weiqi, Hu, Hao, Oxenløwe, Leif Katsuo, Christophe Peucheret, Chen, Yaohui, Yi Yu, Leif Katsuo Oxenlowe, Yaohui Chen, Kresten Yvind   +17 more
core   +1 more source

Performance analysis of a multi-user outdoor visible light communication system using wavelength division multiplexing (WDM) with RZ-OOK and NRZ-OOK modulations for V2X communications

e-Prime: Advances in Electrical Engineering, Electronics and Energy
Vehicle-to-Everything (V2X) communication represents a revolution in traffic management and road safety, with innovation at the heart of this evolution.
Anass Kharbouche, Hamza Ouamna, Zhour Madini, Younes Zouine   +3 more
doaj   +1 more source

Comparison of OOK- and PAM-4 modulation for 10 Gbit/s transmission over up to 300 m polymer optical fiber

, 2008
10 Gbit/s Transmission over up to 300 m of multimode 62.5 µm core-diameter perfluorinated graded-index polymer optical fiber is compared using on-off-keying (OOK) or 4-level pulse amplitude modulation (PAM-4) and feed-forward or decision-feedback ...
S.C. Jeffrey Lee, Florian Breyer, Norbert Hanik, Breyer, F., Hanik, N., Lee, S.C.J., Lee, S.C.J.; id_orcid, Sebastian Randel, Randel, S.   +8 more
core   +1 more source

Performance Evaluation of Optical Transmission Based on Link Estimation by Using Deep Learning Techniques

IEEE Access
In optical communication systems, the Q-factor is an important performance metric to evaluate the performance of an optical link. In this paper, a deep learning-based eye diagram analyzer is proposed to estimate the Q-factor.
Ahmad Sami Al-Shamayleh, Aadil Raza, Zulfiqar Ali, Saad Malik, Saeed Iqbal, Basit Raza, Muhammad Iqbal, Ahmad Atieh   +7 more
doaj   +1 more source

High-order mode group multiplexed transmission over a 24km ring-core fibre with OOK modulation and direct detection

, 2017
We demonstrate 2×10Gbit/s error-free (BER<;10-12) mode-group multiplexed transmission over a 24km step-index ring-core fibre using two high-order mode-groups with OOK modulation and direct detection. All-optical (de)multiplexing is enabled by inherent
Wang, Honghai, Wilkinson, Timothy, Yang, Yucheng, Zhang, R, Richardson, David, Chen, S, Yang, Y, Alam, SU, Richardson, DJ, ,, Jung, Y, Wang, H, Feng, F, Feng, Feng, Jung, Yongmin, Chen, Su, Zhou, Hongyan, Zhou, H, Zhang, Rui, Alam, Shaif-Ul, Wilkinson, TD   +20 more
core   +1 more source

Investigation and Implementation of Dicode Pulse Position Modulation Over Indoor Visible Light Communication System

A visible light communication (VLC) system with green technology is available and enables users to use white LEDs for illumination as well as for high data rate transmission over wireless optical links.
Buhafa, Adel Mohamed
core  

On the study of the FSO link performance under controlled turbulence and fog atmospheric conditions

, 2011
In this paper, the effect of turbulence and fog on the free space optical (FSO) communication systems for on off keying (OOK), pulse amplitude modulation (PAM) and subcarrier intensity modulation (SIM) based on binary phase shift keying (BPSK) is ...
Ghassemlooy, Zabih, Kandus, Gorazd, Kvicera, V., Leitgeb, Erich, Rajbhandari, Sujan, Perez Soler, Joaquin, Le Minh, Hoa   +6 more
core  

Transcriptional regulation and life-span modulation of cytosolic aconitase and ferritin genes in C-elegans

, 2004
Ferritin is the major iron storage protein regulating cytosolic concentration of iron by storing excess iron. Vertebrate ferritins are heteropolymeric proteins composed of heavy chain and light chain subunits.
Ahnn, J, Cho, JH, Kim, YI, Yoo, Ook-Joon
core   +1 more source